Fuel-oil burner



March 1-7. 1925.

-' M. w. WOOD FUEL OIL BURNER Filed June' 5, 1924 INVENTOR ATTORNEYS Wis]: 18 is fixed as bymeans of a c Patented Mar. 17, 1925.

non w. woon, or sronx CITY, IOWA.

FUEL-01L BURNER.

Application filed June 8,

To all whom it may concern: I

Be it known that I, MYRON W. Woon, a citizen of the United States, and a resident of Sioux City, in the county of Woodbury and State of Iowa, have invented certain new and useful Improvements in Fuel-Oil Burners, of which the following is a specification.

My present invention relates generally to burners and more articularly to gaseous fuel burners for oil burnin furnaces employing kerosene and other nown oil distillates, and ;the vobjects and advantages thereof will be hereinafter outlined and may be better understood after thorough description of the details of my improved constructionand'an explanation of its operation and uses.

In the accompanying drawing-which illustrates my present invention and forms a part of this specification,

Fi ure 1 is a vertical section taken diametrically through my improved burner,

Fi ure 2 is a horizontal section taken substantlally on line 2 2 of Figure 1, and

Figure 3 is a bottom perspective view of the 11d or cover member.

Referring now to these figures my invention proposes a burner including an annular upwardly opening bowl-like body having an enlarged central draft opening 11 vertically therethrough and having a lower outer annular shoulder 12 adapting the same to rest upon a flangedsupporting ring 13. This ring in the practical use of the invention may rest u on the central portion of a furnace grate wliose portion around the burner will of course be closed so as to confine the upwardly moving air currents to pgssfge through the upright flue 11 of the Into the base of the bowl leads a fuel oil supply i e 14 and upwardly through the base 0 t e bowl extends an overflow pipe 15 whose upper end terminates slightly below the upper edge of the bowl both as to its outer and inner walls, this overflow pipe having its upper end capped by means of a hood 16 in order to prevent clog ing thereof in the presence of the grave or small particles of fire resistant material of granular vfoi'm. with which the bowl 10 is filled. Around the upper edge of the inner cylindrical wall 17 of the bowl 10 a ring shaped 1924. Serial n 717,597.

depends into the granular material with which the bowl is filled to a point below the upper end off-the overflow pipe 15.

Seated'upon the upper "end of the inner wall 17 of the bowl is a circular cover 20 which may have an upper central handle 21 and which is provided with depending dividing webs 22 adapted to extend downwardly into the vertical air fluell in order to split the upwardly moving air current into several parts and thus insure an even, dlstrlbution of thls alr current around the circumference of the cover. These webs or dividing walls 22 have shouldered portions 23 at their outer edges which form engaging lugs adapted to-rest upon the upper edge of the inner cylindrical wall 17 of the bowl and in addition to the webs or Walls 22 which "split the air current, that portion of the undersurfaceof the cover 20 which projects partly over the bowl beyond the inner wall 17 forming the air flue, is provided with circumferentia'lly spaced air deflecting' lugs'24 and 25, the. lugs 25 being 1 located'between the lugs 24 and being of" 4 different shape as compared thereto so that the divided currents of air passing across the top of the bowl are unevenly deflected in a downward direction'toward the top of the bowl and in this way a thorough mixture of air and gas or vapor to form the combustible fuel, is-assured. In practice the bowl is filled with coarse gravel or broken particles of other fire resistant material, which being packed around the cap 16 of the overflow pipe, avoidsall danger of displacement of said cap and does away with any danger of the overflow pipe becoming clogged. In starting the burner the flow of oil isturned on through the pipe 14 and the'bowl is permitted to fill until the oil starts to over ow through the overflow pipe 15. At this time the lower edge of the annular wick 18 will be within the oil and the wick is then lighted by applying a match to its upper edge. The burning at the wick heats the material within the bowl. and in fact heats up the entire burner and it is but a short space'of time before generation of gas commences, the gas rising through the material with which the bowl is filled, beneath the outer peripheral portion of ,the cover 20. The drafts are then turned on and the air rushin upwardly through-the air flue 11, spree 5 out betweenthe depending walls 22 and rushes outwardly to mingle with the gas andin lows.

a My improved burner a whole is entirely safe in use because no matter how open the 1 drafts are or how great or sudden the changes in draft from any cause, the fire will not go out as is common with other makes of burners. My im roved device'continues to burn for some ew minutes after the oil is shut oif and by the time gas ceases to form and the fire goes out, the temperature of the burner is lowered to such an extent that even if the oil were immediately turned on there would not be enough heat in the burner to generate gas and hence it would be' impossible for explosion on the accidental applicationv of a light tothe burner as for instance careless dropping of a li hted match into the furnace.

11 view of the fact that after operation of the burner commences the flame starts from substantially beyond the center of the burner, in. fact be end the outer edge of the burner, a flame o a' certain length will play just that much closer to the sides of the fire 'ot of'a furnace than is the casewhere' oil is fed in the center of'the burner. This reical in sults in the direct application of. a substantially larger flame againstthe wall of the fire ot,-making the burner very econome use of fuel.

By equipping the burner as outlined with a positive safe overflow pipe extending up within a shortspace below the top of the oil bowl and provided[with" a cap resting .thereon which permits the oil] to 1 readily find its way into the. upper end of the over-. flow tube, I insure inst overflowing of the bowl. The cap 0 the overflow pipe ortube extends downwardly into the coarse gravel or other material ofthe wall. to a suflicient extent to avoid any chance of the cap becoming displaced and the tube'or pipe .By' equip mg the cover with three; air dividing wa son its underside, the air is forced to come out evenly all around the burnerregardles of any side draftsor' air.

currents crossing the fire box thus assuring an even flow of fire entirely around,the burner and eliminating the possibility of carbon being formed through improper combustion. Pro er eflicient combustion "is further assure by the lugs'on the underside of the cover by means of which the air is un-- evenly deflected toward the bowl and thorough mixture with the gas is thus brought about. This also 'resultsin the elimination of vibration and noise ordinarily incident to vided with a central vertica air flue and a opening into the base of owl having an overflowliquid fuel su l the bowl,- sai dpb means a strip of material around the up er end 0% the "air flue formin 'a' wick, an a cover over the air flue for eflecting the air outwardly over the bowl.

2. A burner of the type described having an annular upwardly ogening bowl provided with oil inlet and over ow-means', said bowl including an inner wall forming therein a vertical air flue 'at the center of the bowl,

- and a cover over the upper end of the air flue having air dividing walls depending v within the air the and 'having a portion extending horizontally over thebowl, and a wick consisting of a. strip of material secured around the upper outer edge of the ,said inner wall as described.-

3. Aburner of the type described havin an annular upwardly 0 ning bowl provided with oil inlet and ove vertical air; flue at the center- 0 the bowl,

and a cover over the upper end of the air flue having air dividing wa ls depending within the air flue and having a rtionextending horizontallyover the ow, said cover having a portion extending outwardly over the bowl and provided with air deflecting lugs arranged to -unevenly deflect the air current downwardly toward the bowl.-

MYRONW; woob.

ow means, said bowl including an inner wall formln therein a 

